But on Tuesday at practice, Denver might have suffered a bad loss on defense when linebacker Danny Trevathan, coming off an impressive 2013 season, injured his left leg and had to be carted off the field.

Trevathan not putting any weight on his left leg. Can't tell if it's his knee or ankle.

In 2013, Trevathan's second season in the league, he started all 16 regular-season games for the Broncos, accumulating 129 total tackles, three interceptions, 10 pass defenses, two sacks and three forced fumbles.